Apparatus for binding perforated leaves



Sept. 12, 1944. FARMS 2,358,062

APPARATUS FOR BINDING PERFORA'IED LEAVES Filed April 20, 1943 V 2 Sheets-Sheet 1 INVENTOR AITORNEY Sept. 12, 1944. w E. N. FARKAS APPARATUS FOR BINDING PERFORATED LEAVES Filed April 20.

1943 2 Sheets-Sheet 2 INVENTOR [m2 [IE/r5 26 BYAPMM Patented Sept. 12, 1944 V UNITED STATES; PAT

ENTI OFFICE APPARATUS FOR BINDING PERFORATED LEAVES Emil N. Farkaachicago, 111., assignor to Farkas Binding Trust, Chicago, Ill.

Application April 20, 1943, Serial No. 483,713 (o1.11--1 v 6 Claims. This invention relates to new and useful improvements in apparatus for binding marginally perforated leaves by means of flexible combshaped elements.

Flexible fingers projecting from the backs of such combs are laced through the marginal perforations of book leaves and then anchored The paper combs are stacked in a. suitable reservoir (not shown) from which they are fed on'a comb-shaped clampingplate I to which is hingedly connected anothercomb-shaped clamping plate 8 by'pin 9 (Fig. 2)} The two clamping plates are supported ina carriage frame l which slides vertically up and downin direct reshowed the locking strip physically separated' from" the comb back, whereas I. shall here disclose apparatus forhandling combs in which preferred embodiment. showed the locking strip is integral with the comb back, like the one disclosed in my Patent No. 2,265,276.

In accordance with the present invention, the ends of the comb fingers are bent and forced in a folded condition through slits in the locking strip which, as above stated, is physically connected with the back of the comb. The finger.

ends are so shaped that this operation will lock .them in place.

The invention will now be described in detail as applied to the drawings in whichi Fig. 1 is a front View of one embodiment of V the invention;

Fig. 2 is a side elevation;

Figs. 3 and 4 are side elevations of the combinserting mechanism in two successive positions;

Fig. 3a is a side elevation of the drive for the forks by means of which the. binding fingers may be anchored to the backs; and

Figs. 5, 6 and 7 are perspective views ofthree successive positions of the forks.

As explained in-my Patent No. 2,265,276 and as shown in Figs. 5-7, marginally perforated leaves I are bound by inserting through the perforations teeth or fingers 2 of a binder shaped as a comb and having a back 3. Near their ends,

the fingers 2 of this comb (made out of paper) have two sloping slits 4. When distorted along the slits 4, theend 5 of each finger can be sponse to movementpf treadle I l. The clamping plates are locatedabove atable 12 on which are piaced the perforated. book leaves I The plate 1 is so positioned that the teeth 2.of..the paper binding comb, the back 3 of which is suspended from three'prongs I3 projecting through the teeth of plate I, will b with the perforations thereof (Fig. 2). v

The operator depresses the treadle II on the end of a lever l4 pivoted to the'frame l5 at l6.'

The lever I4 is normally held'up by a coiled spring I1 andwhen pushed down causes through a pivoted link l8 a bellcrank lever,l9 to rotate counterclockwise around itspivot point 20. This will rotate counter-clockwise on its pivot 22a yoke 23 fastened to lever l9 at 24 and linked at 22 to '2. lug 25 projecting from a platform 26,

producing a downwardmovement in platform 26 against the tension'of spring 26a, to which are attached clamping plates 1 and 8 by their hinge 9. A clamping plate 8 is forced downward, it is through the also rotated, clockwise-around its pivot Q-by a fixed cam pin 21 and thuscaused to wards clamping plate 1 (Fig; 2). 1

The counter-clockwise rotation of yoke 23 pro- 'duces a downward movement of itslpivot 22 which continues until the hooked end 29 of an arm 28 fastened to yoke .23 and projecting platform 26 engages an apron 30 (Fi 3). i

During the continued rotation of yoke 23, the

clamping plates 1 and 8, with the paper comb suspended 'by lugs [3 between them, are moved vertically downward and rotably toward each other The marginal perforations in the leaves I are aligned with the teeth of the comb assembly and thus the teeth 2 "of the paper comb are doubled back (Fig. 6) and forced through a r "suitably aligned U-shaped slit 6 in the back 3 (Fig. 7) The distorted ends5 will anchor the teeth 2 against withdrawal from the back 3.

guided through the leaf perforations.

As'shown' in Fig. 3, at the end of'the downward movement and the tips 5 of teeth 2, the lugs l3 will have been withdrawn and lugs 13a will thrust the comb 'down with ends 5 projecting beyond the ends of the clamping or guiding plates 1 andJl. When the rotation of a shaftv 3| is. started, as 'will be described, the three lugs l3 are .Withdrawn from the clamping plate 1. 7 This action is efiected by a tensional relation'between the rod 33 and the lever 32 (Fig. 2) During the e above leaves I and aligned move to-- the comb teeth within the slits 4. teeth will thus be rotated counter-clockwise away operations" being performed in reverse.

upward movement of the tread-1e II. and the.

duces a contra-clockwise rotation of member 35; I thus removing support of lug l3from paper comb and causing lug l3-a. to rotate in a counter clockwise direction. It is this downward pressure of lug I3--a upon the upper edge of back 3' of comb which displaces the paper comb downward, beyond its original position between the plates 1 and 8, thus exposing the projecting ends of the paper comb to the deforming process of plate 36, as shown in Fig. 3. The paper comb is now allowed to drop down and will, as a matter offact, be pushed down by the counter-clockwise rotation of these hooks 35 which will project through the teeth of clamp l with their upper lug ends I30. and bear down on the upper edge of the comb back 3 (Fig. 3). forces the paper finger ends 5 to project down below the clamping plates 1 and 8,-thus enabling a platform 36 to bend these ends.

When the hooked end 29 of the bar 28 engages the apron 30, it will cause the normally tilted shelf 36 (Figs. 2 and 3) to swing around pivot 31" into a horizontal position (Fig. 3).

Metal fingers 38 bent into semi-circles are fastened to a transverse shaft 3|, in alignment with the comb-teeth. The fingers 38 have forked ends '33 arranged'to engage at the slits-4 in the comb teeth projecting below the clamping means. The ends 5 of the paper combs are contacting the tilted shelf 36 and are still engaged by the clampingmeans I and 8, which prevents their movement backward. The forked ends 39 of fingers 38 will, therefore, bite into the comb teeth at the slits 4.

When the shelf 36 is in the position shown in Fig. 3', the ends 5 i the comb teeth will be bent at right angles andclamped between the shelf and the fingers'33. Later, duringthe continued rotation of shaft 31, the wedges formed within the forked ends 39 of fingers 38 will grip The comb from'the shelf 35, the ends of the comb teeth being doubled back against fingers 38 (Fig, 6').

The operator now releases treadle H. Spring l T will return it, and thus the elements connected with it to normal, the above-described This resulting upward movement of carriage frame provides power for the rotation of shaft 3| on which are mounted the curved metal fingers 38. This is accomplished by a rack gear fired on carriage frame In, the motion of which is transmitted through gears All, 41, to a pinion gear 42 keyed toshaft 3l-. 7'

While the fingers 38 rotate, the clamping plates '1 and 8 are moved upwards into the position shown in Fig. '4 bymeans of the tension in a spring II which raiseslever M and thereby reverses the action of members l8, l9 and 23,-c'ausing plates 1 and 8't0 rise and final-lycausing plate I toopen out again, due to resistance of strut bar33; intotheposition shown'in Fig. 2.

The-rotationof fingers 38 is continued-until This latter action they project through the U-shaped slits in the comb back 3 (Figs. 4 and 7). Thus the folded back ends 5 of the teeth will be forced through the back 3, the ends 39 of the fingers 38 opening the flaps formed by the U-shaped slits 6. The ends 5 of the comb teeth remain anchored in back 3 by virtue of the deformation of the ends along the slits 4 and the transverse fold formed as shown in Fig. 7.

A stop 43 having perforations 44 aligned with fingers 38 is provided behind the back 3 when the paper comb is dropped through the perforations in. the leaves I.v This stop is moved horizontally into contact with the back 3 to prevent it from folding back and down when fingers 38 push against it. This may be performed by suitable means connected-with the mechanism. or manually by the operator.

.The bound book leaves may be removed and the operation repeated.

What is claimed is: 1. In a device for fastening to a slitted' strip the ends of binder fingers projecting through marginally perforatedleaves, a plurality of forks, one for each finger, means for forcing each fork transversely to straddle its corresponding finger near its end with the finger end partly folded along the line of engagement by the fork, means for moving the forks" and strip relatively to oneanother until the forks with the finger ends project through the slits in the strip, and means for withdrawing the forks from the slits.

2. In a device for fastening the ends of binder fingers to a slitted back by which they are held together, said fingers being slit near their ends and projecting through marginally perforated leaves, a plurality of forks, one for each finger, means. for moving each fork to'engage its corresponding finger at its slit end and partly folding the finger end, means for moving the forks and back relatively to one-another until the forks with the folded finger ends project'through the slits in the back, and means for-withdrawing the forks. V v 3. In a device for binding marginally perforated leaves with paper combsj having flexible fingers provided with lateral slits near their ends slanting towards. the tips of the fingers and U-shaped slitsin the back aligned with the finger, two relatively rigid open-ended guides of about the same contour as the fingers and spaced from oneanother; a. plurality of movable lugs projecting between the guides and on which a comb is suspended, means for moving the guides towards one-another to clamp the comb fingers, a table for supporting the leaves, the perforations of which are aligned with the guides, means for releasing said lugs and projecting the finger ends from the guides,'.a tiltable platform-below the surface of the table and normally'at an angle of theback engaging the top leaf and the finger ends adjacent the platform, a movable stop engaging the back of the conib and having open,-

ings aligned with the U -shaped slits, means for tilting the platforminto a substantially horizontal position-folding each finger end-along a line con-- nectingthe bottoms of the slits, a.plurality' of forks; one for each; finger" moved parallel with the folded fingerends to straddle each finger in its fold and to gripit, means for moving said forks and stop relatively to one-another until the folded finger ends and the gripping forks project through the U-'-shaped slits in the comb back 7 into the openings of the stop, and means for withdrawing the forks from the slits.

4. In a device for binding marginally perforated leaves with paper combs having flexible fingers provided with lateral slits near their ends slanting towards the tips of the fingers andU-shaped l0 slits in the back aligned with the finger, two relatively rigid open-ended guides of about the same contour as the fingersand spaced from oneanother, a plurality of movable lugs between the guides from which a comb may be suspended, 15

means for moving the guides towards one-an- "other to clamp the comb fingers, a table for supporting the leaves, the perforations of which are aligned with the guides, means for moving the guides with the. comb fingers through the per- 20 forations in the leaves, means for removing the guides and releasing the comb to hang with the edge of the back engaging the top leaf and the finger ends adjacent the platform, a stop against which the back of the comb rests and having openings aligned with the U-shaped slits, a plurality of forks, onefor gripping each finger at its slits, means for moving said forks horizontally and vertically, means for moving said stopto ject through the U-shaped slits in the comb back into the openings of the stop, and means for with one-another until the clamping means with the finger ends project through the slits in the strip, and means for withdrawing the clamping means from the slits,

6. In a device for fastening the ends of binder fingers to a slitted back by which they are held together, said fingers being slit near their ends and projecting through marginally perforated leaves, a plurality of clamping means, one for each finger, means for moving each clamping means to engage its corresponding finger at its slit end and partly folding the finger'end, means 5 for moving the clamping means and back relamove the back towards the forks until theypro- 30 tively to one-another unti1 the clamping means with the folded finger ends project through the slits in: the back, 'and means for withdrawing the clamping means. 7 

